<!-- 
    模块就是js文件
    export出口
    import进口
 -->
<!-- <script src="function.js"></script> -->

<script type="module">
import x,{a,b,c} from'./function.js'
import{calcCircle} from './function.js' 
import {a as a3,changeA} from'./data.js'
    //{a:function{},b:function{}}
import *as dataObj from './data.js'
import './updata.js'
// console.log(a(),b,c);
// console.log(calcCircle(10));
// console.log(x);
console.log(a3);
changeA(10)
console.log(a3);

</script>